Gumowski-Mira Attractor

μ = -0.478

Gumowski-Mira Attractor,

x (n+1) = y(n) + a*(1 − b*y (n)^2)*y(n)+ f(x(n))
y (n+1) = − x(n)  + f (x(n+1))
f (x) = μ*x + 2*(1−μ)*x^2 /(1+x^2)

a=0.008

b=0.05

using scatter plot in Numbers.

μ = -0.800001

μ = -0.995